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/* Convert string to double, using the C locale.
Copyright (C) 2003, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Paul Eggert. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "c-strtod.h"
#include <locale.h>
#include <stdlib.h>
#include "xalloc.h"
#if LONG
# define C_STRTOD c_strtold
# define DOUBLE long double
# define STRTOD_L strtold_l
#else
# define C_STRTOD c_strtod
# define DOUBLE double
# define STRTOD_L strtod_l
#endif
/* c_strtold falls back on strtod if strtold doesn't conform to C99. */
#if LONG && HAVE_C99_STRTOLD
# define STRTOD strtold
#else
# define STRTOD strtod
#endif
DOUBLE
C_STRTOD (char const *nptr, char **endptr)
{
DOUBLE r;
#ifdef LC_ALL_MASK
locale_t c_locale = newlocale (LC_ALL_MASK, "C", 0);
r = STRTOD_L (nptr, endptr, c_locale);
freelocale (c_locale);
#else
char *saved_locale = setlocale (LC_NUMERIC, NULL);
if (saved_locale)
{
saved_locale = xstrdup (saved_locale);
setlocale (LC_NUMERIC, "C");
}
r = STRTOD (nptr, endptr);
if (saved_locale)
{
setlocale (LC_NUMERIC, saved_locale);
free (saved_locale);
}
#endif
return r;
}
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